/**
 *  Serponix is an arcade game in focus to multiplayer based on the classic game Snake.
 *  Copyright (C) 2010 - 2011  Daniel Vala
 *
 *  This program is free software: you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation, either version 3 of the License,
 *  or  any later version.
 *
 *  This program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.

 *  You should have received a copy of the GNU General Public License
 *  along with this program.  If not, see <http://www.gnu.org/licenses/>.
 *
 *  If you have any question do not hesitate to contact author
 *  on e-mail address: danielvala42@gmail.com
 */
package com.serponix.ai;

import com.serponix.game.*;
import java.util.Random;

/**
 * The abstract class <code>AI</code> is the superclass of all Artificial Intelligence
 * classes.
 * Subclasses must provide method <code>setNewDirection</code> to set new direction
 * of AI player in the next step of the game.
 * @author Daniel Vala
 */
public abstract class AI {

    protected Random randomGenerator;
    protected GameModel model;
    protected Player player;
    protected Snake snake;

    public AI(GameModel model, Player player) {
        randomGenerator = new Random();
        this.model = model;
        this.player = player;
        this.snake = player.getSnake();
    }

    /**
     * Set a new direction of AI.
     * Direction can be the same as before or changed.
     * This method should be called each step of the game, not just
     * when AI snake is moved because of remebering of the game situation.
     */
    public abstract void setNewDirection();
}
